5.4 Tiller drive (tiller pilots only). Raymarine autopilot ST4000+

81131_7.book Page 49 Wednesday, March 17, 2004 3:59 PM

Chapter 5: Installing the ST4000+ 49

5.4 Tiller drive (tiller pilots only)

Critical dimensions

Installing the tiller drive involves mounting it between the tiller and a fixed point on the boat’s structure. Two dimensions are critical for correct installation:

• Dimension A = 620 mm (24.5 in) : the distance from the mounting socket to the tiller pin. Pull out the drive pushrod to this dimension.

Note: If your installation requires a pushrod extension (see page 51) or cantilever mount (see page 55),this dimension will increase.

• Dimension B = 460 mm (18 in) : the distance from the rudder stock’s center line to the tiller pin.

468 mm (18.4 in)

38 mm

(1.5 in)

'A'

620 mm (24.5 in)

44 mm

(1.7 in)

'B'

460 mm

(18 in)

'B' 460 mm (18 in)

90˚

Rudder axis

Sloping rudderstock

D5339-1